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Introduction

Usually, the following directives are commonly used in the assembly-language programming.
 

DB: Define Byte

DW: Define Word

DQ: Define Quadword

DT: Define Ten Bytes

ASSUME: Assume Logical Segment Name

END: End of Program

ENDP: End of Procedure

ENDS: End of Segment

EQU: Equate

LABEL: Label

LENGTH: Byte Length of a Label

NAME: Logical Name of a Module

OFFSET: Offset of a Label

ORG : Origin

PROC: Procedure

SEG: Segment of a label

 

Norton Editor

 

Norton's Editor's opening page
 

Norton's Editor with file name ABC.ASM

  

 

 

Norton's Editor opens a file ABC.ASM

 

Program for subtraction of two numbers in Norton's Editor

MASM Editor

MASM Opening Page

 

MASM Opening Page

 

 

Status Flags

Status Flags for RESET and SET
 

 




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